Reinforcement for composition coverings for structural members.



4 aammms. REIHFORCEMEN FOR COMPOSHlON GOVEHINGS FOB ASTRUCTURAL MEMBERS.` APPLicATlo FILE!) nsf; M'. lsu/L 1,251,020. Mmm B66. 25,1917.

UNITED STATES PATENT OFFICE.

GARABED G'. HEGHINIAN, OF NEW YORK, N. Y., ASSIGNOR T0 FLORENCE Gr. HAYDEN, OF QUINCY, MASSACHUSETTS.

BEINFOBCEMENT FOR COMPOSITION COVERINGS FOR STRUCTURAL MEMBERS.

To all whom t may concern:

Be it known that I, GARABED G. Hno- HIMAN, a citizen of the United States, and a resident of the city of New York, county and State of New York, have invented certain new anduseful Improvements in Reinforcements for Composition Coverings forV Structural Members, of which the following-is a full, clear, and exact description.

The invention relates to reinforcements for concrete and like fire-proofing composition coverings of structural members, and seeks to provide an improved reinforcement which can be readily applied to structural members with the reinforcing elements thereof properly spaced from one another and from the member. More particularly, t-he invention seeks to provide a reinforcement ofstrong, braced construction, which can be securely connected to the structural member so that it cannot be displaced as the concrete or other composition is tamped into the molds. The invention consists in the features of improvement hereinafter set forth, illustrated in the preferred forms in the accompanying drawings and more particularly pointed out in the appended claims.

Ink the drawings Figure 1 is a perspective view of the preferred form with the present improvement shown applied to the lower flange or soffit of an I-beam, and with a portion ofthe body of concrete in which the I-beam is embedded indicated in dotted lines. Fig. 2 is a Cross section of the lower portion of the I-beam with the improved reinforcement applied thereto. Fig. 3 is an inverted plan view of the parts shown in Figs. 1 and 2. Fig. 4 is a cross section illustratinga slightly modified form of the improvement adapted for application to a channel bar.

The improved reinforcement comprises two or more series of stays or reinforcing elements which are connected together to maintain the same in dierent, substantially parallel planes, and to brace or strengthen the separate elements. The reinforcement is preferably expansible and the cross Stays of each series are connected together and are adapted to extend back and forth over the face of the member to which the reinforcement is applied. In the preferred form shown, the cross stays are connected against Specification of Letters Patent.

Patented Dec. 2,5, 1917.

Application filed December 14, 1914. Serial No. 877,100.

Vformed of separate wires, each stay wire being connected to the two adjacent stay f wires of its series by short wire sections 11 welded thereto. IVhile this manner of connecting or forming the joints between the stay wires forms stout joints and can be inexpensively effected by electrically welding the short connecting pieces 11 to the stay wires, it is obvious that the stay wires vmay be otherwise connected in a manner permitting the separation of the cross stays as the reinforcement is expanded.

The reinforcement is provided with offset extensions arranged to abut against the edges or anges of the structural member and connections are also provided between the two series of cross stays to maintain the cross stays of the separate series in different plane with each cross stay of one series substantially parallel to the adjacent cross stay of the other series. These extensions and connecting elements preferably project from the expansion joints or connections between the cross stays and are preferably integral with the latter. For this purpose, each of the cross stays 10 of the upper or inner series is provided at one end with an integral extended portion 12 and each of the cross stays 10 of the lower or outer series is provided at one end with an integral extended portion 13, and these integral portions extend from or beyond the joints or connec ytions between the cross stays. sions 12 in the form shown in Figs. 1, 2 and The exten- 3 are bent upwardly and then inwardly to form attaching hooks 14, which are arranged to overlap the flanges 15 of the I- beam 16 to secure the reinforcement in place. The shanks 14 of the hooks are also arflanges 15, as most clearly shown in Fig. 2.

Preferably also the portions of the extensions 12 between the attaching hooks and the expansion joints are bent inwardlyV to form portions 17 which are arranged to abut Vagainst` the outer or lower face of the structural member and which are oHset from the plane of the cross stays 1Q so that the latter are spaced from the face of the member. It should be noted that the hooks 14 and the oiset portions or elements 17 form in effect jaw members which are offset from the plane ofthe cross stays 10 and which are spaced apart to receive the flanges of the structural member between them.

The extensions 13 preferably project laterally in the plane of the cross stays 10 and are then bent upwardly and inwardly and are rigidly connected to the hooks 1a preferably by means of short connecting pieces 18 welded thereto.

Before the reinforcement is applied in position the cross stays of each series are substantially parallel as indicated in thelower portion of Fig. 3, and, in this unexpanded condition, the space between the hooks 11 at opposite sides of the reinforcement is such that they may be readily engaged with the ange of the structural member. Vhen the reinforcement is expanded longitudinally of the structural member, the cross stays spread apart in the zigzag arrangement shown in Fig. 1 and in the upper portion of F ig. 3, and theV attaching elements r hooks are drawn inwardly into engagement with the beam flange. lt should be noted that the construction is such that the expansion of the reinforcement does not tend to distort the offset extensions 12 so that the engagement of the Shanks 14 of the attaching hooks with the edges of the flanges of the structural member, limits or arrests the expansion and thereby auotmatically determines the spacing of the cross stays. Moreover, the engagement of the spacing portions or elements 17 with the outer or under face of the member prevents the cross stay 10 from being' drawn in against the face of the member and thereby aids in limiting `the expansion. lt should also be noted that the rigid connections between two series of stays serve to maintain the same in proper spaced relation with each cross stayv of one series substantially parallel to the adjacent cross stay of the other series and the two series of connected stays 'brace and strengthen one another so that they cannot readily be tipped, distorted or displaced when once Yput in position upon the beam. Furthermore, the extensions 12 and 13 brace onevanother and form stout attaching elements which cannot be readily disengaged from the beam ilanges as the concrete or other composition is tamped into the mold. 1t should Aalso be noted that the extensions A13 project; outwardly to a considerable extent beyond'the beam flanges and thereby serve to reinforce the portions of the body of concrete outside of the beam Hanges. lnasmuch as these extensions are rigidly secured to t-he hooks or attaching elements which snugly engage the beam flanges these reinforcing extensions are securely held in proper position. 1t is important to brace and strengthen the parts of the reinforcements as above described since expansible reinforcements of this vsort are formed of soft annealed wire, and, unless the parts are properly braced and strengthened, they are aptto be distorted or moved out of proper position.

In the form shown in Fig. 4 the extensions on one side of the reinforcement are similar tothose previously described. 0n the other side, extensions 12 and 13 are provided with verticallyA disposed ,connectedends19 which are adapted to abut against the outer face of the webl of the channel bar 2O and a` portion of the Aextension 13 beyond the part 19 is upwardly offset to form a V- shaped seat 21 which is adapted to receivek the lower hooked end 22; of'a connecting wire lThis wireextends upwardly from the upper edge of the channelbarandy is bent overthe upper-flange, as clearly shown in Fig. 4. One ofthesel connecting wires is secured to each vextension 13 of the reinforcement and serves to vsecure the latter in place and also 'to strengthenor reinforce the 'body or concrete covering'on the outer A face of theweb of the; channel bar.

out departure from theessentials of the invention as defined in the claims;

I claim as Vmy linvention 1;- Aj reinforcement for the composition covering of structural members comprising two expansible series of cross stays adapted to extend back and forth over'the face of the member and connected together to lmaintain the cross-stays of the two series in different planes, and offset extensions from the cross stays for engaging the edges ofthe structural members;

2. A reinforcement for thecomposition covering; of structural members comprising two series of cross stays adapted to extend back and forth over the face of the member, connections betweenithe cross stays of each seriesfor holding the same in proper spaced relation, connections between thetwo series for-maintaining-each cross stay offonefseries substantially parallel to the adjacent stay ofthe other series, and offsetsextensions from saidcross stays forengaging the edges of the structural members 3. A' reinforcement for the composition coveringof structural members comprising maintaining the same iny different planes with each cross stay of one series substantially parallel to the adjacent stay of the other series, and offset attaching elements arranged to engage the structural member upon the expansion of the reinforcement to secure the latter thereto.

4. A reinforcement for the composition covering of structural members comprising two series of cross stays, the cross stays of each series being connected at intervals against separation and adapted to extend back and forth over the face of the member, connecting elements between the two series for maintaining the cross stays thereof in different planes, and oset attaching elements extending from some of the joints between the cross stays for engaging the edges of the structural member.

5. A reinforcement for the composition covering of structural members comprising two expansible series of cross stays, the cross stays of each series being connected at intervals against separation and adapted to extend back and forth over the face of the member when expanded, connecting elements between the two series for maintaining the cross stays thereof in different planes, each of said connecting elements being integral with a cross stay in one series and connected to a cross stay in the other series, and certain of said cross stays having integral portions extending beyond thejoints between the same and bent to form attaching elements.

6. A reinforcement for the composition covering of structural members comprising two series of cross-stays, the cross-stays of each series being connected at intervals against separation to define an angular arrangement of the cross-stays, connections between the two series for maintaining the cross stays thereof in different planes with each cross-stay of one series substantially parallel to the adjacent cross-stay of the other series, and offset extensions from said cross-stays constituting attaching elements.

7. A reinforcement for the composition covering of structural members comprising two expansible series of cross-stays, the cross-stays of each series being connected at intervals against separation to define an angular arrangemment of the cross-stays when expanded, offset extensions from certain of said cross-stays consituting attaching elements for engaging the edges of the structural members, and extensions from other cross-stays constituting connecting elements between the two series for maintaining the cross-stays thereof in different planes, Said connecting elements projecting laterally beyond said attaching elements.

8. A reinforcement for the composition covering of structural members comprising two expansible series of cross-stays, the crossstays of each series being connected at intervals against separation to dene an angular arrangement of the cross-stays when expanded, offset extensions from one series of cross-stays constituting attaching elements for engaging the edges of the structural member', and offset extensions from the ,other series of cross stays connected to said attaching elements and constituting spacing and Connecting elements between the two series for maintaining the cross-stays thereof spaced apart in different planes, said connecting elements projecting outwardly beyond said attaching elements.

9. A reinforcement for the composition covering of structural members comprising two series ,of cross-stays, the cross-stays of each series being connected at intervals against separation to define an angular arrai'igement of the cross-stays, integral offset extensions projecting from the joints between the stays of the inner series and bent to form attaching hooks for engaging the flanges of the member, and integral offset extensions from the joints between the stays of the outer series connected to said attaching hooks and projecting outwardly beyond the same to reinforce the composition body outside of the flanges of the member.

10. A reinforcement for the composition covering of structural members comprising two series of cross-stays, each cross-stay being connected or joined to the adjacent crossstay of its series to define an angular or zigzag arrangement of the cross-stays over the face of the member, connections between the two series of cross-stays for maintaining the same in different planes with one series further from the face of the member than the other, and offset attachment elements eX- tending from said cross-stays for engaging the edges of the structural member.

11. A reinforcement for the composition covering of structural members comprising two series of cross stays adapted to extend over the face of the member, connections between adjacent stays and between the two series of stays arranged to maintain the adjacent stays in proper spaced relation and the two series of stays in different planes with one series farther from the face of the member than the other and offset attaching elements ext-ending from said cross stays Vfor engaging the edges of the structural member.

12. A reinforcement for the composition covering of structural members comprising two series of stays, connections between the individual stays arranged to hold the same against tipping and in proper spaced relation, connections between the two series of stays arranged to maintain the same in different planes with one series farther from the face of the member than the other, and offset attaching elements extending from said stays for engaging the edges of the structural members.

13. A reinforcement for the composition covering of structural members comprising two series of cross stays adapted to extend over the face of the member, the cross stays of each series being connected at intervals against separation to hold the same in proper spaced relation and otl'set extensions from certain of said cross stays constituting attaching elements arranged to engage the edges of the structural members and offset extensions from certain of said cross stays connected to and bracing said attaching elements and constituting spacing and connecting` elements between the two series of cross stays for maintaining the saine spaced apart :1- in different planes.

lll. A. reinforcement for the composition covering ci' structural members cmnprising two cxpansible series ot cross stays, the adjacent cross stays of each series being joined at intervals against separation to deline an angular arrangement of the cross stays when expanded, integral offset extensions projecting from the joints between the stays of one series and shaped to form attaching elements for engaging the edges of the structural member, and integral oiset extensions projecting from the joints be-v tween the stays of the other series connected to and bracing said attaching elements and constituting spacing and connecting elements for holding the two series of stays in different planes.

GARABED G. HEGHINIAN. Witnesses H. S. S. PoLLoox, WILLIAM MCFARLAND.

Copies of this patent may be obtained for live cents each, by addressing the Commissioner of Patents, Washington, Il. C. 

